https://www.hollywoodreporter.com/live-feed/my-little-pony-sets-final-season-discovery-family-1193235

In one detail, it says something about an ancient villain bands together a legion of nefarious characters to conquer all of Equestria, challenging Twilight Sparkle and the rest of the Mane 6 to step in and save the day. 

Hope they don't recruit Garble in the band of villains . And if they do, will he realize the mistakes he's making and probably reform? Hmmmm………..